diff options
| -rw-r--r-- | test/Makefile.am | 2 | ||||
| -rw-r--r-- | test/scaling-test-bisect.rb | 38 | ||||
| -rw-r--r-- | test/scaling-test.c | 261 |
3 files changed, 301 insertions, 0 deletions
diff --git a/test/Makefile.am b/test/Makefile.am index 33e2200d..31307d46 100644 --- a/test/Makefile.am +++ b/test/Makefile.am @@ -4,6 +4,7 @@ TESTPROGRAMS = \ composite-test \ gradient-test \ region-test \ + scaling-test \ fetch-test noinst_PROGRAMS = $(TESTPROGRAMS) @@ -14,6 +15,7 @@ composite_test_LDADD = $(top_builddir)/pixman/libpixman-1.la $(GTK_LIBS) gradient_test_LDADD = $(top_builddir)/pixman/libpixman-1.la $(GTK_LIBS) fetch_test_LDADD = $(top_builddir)/pixman/libpixman-1.la region_test_LDADD = $(top_builddir)/pixman/libpixman-1.la +scaling_test_LDADD = $(top_builddir)/pixman/libpixman-1.la clip_test_LDADD = $(top_builddir)/pixman/libpixman-1.la $(GTK_LIBS) endif diff --git a/test/scaling-test-bisect.rb b/test/scaling-test-bisect.rb new file mode 100644 index 00000000..2e4aff30 --- /dev/null +++ b/test/scaling-test-bisect.rb @@ -0,0 +1,38 @@ +#!/usr/bin/env ruby + +if not ARGV[0] or not ARGV[1] then + printf("Please provide two 'scaling-test' static binaries in the command line.\n\n") + printf("The first should be linked with the correct reference pixman library.\n") + printf("The second binrary should be linked with the pixman library to be tested.\n") + exit(0) +end + +$MAX = 10000 +$MIN = 1 +$AVG = 0 + +if `#{ARGV[0]} #{$MAX} 2>/dev/null` == `#{ARGV[1]} #{$MAX} 2>/dev/null` then + printf("test ok\n") + exit(0) +end + +printf("test failed, bisecting...\n") + +while $MAX != $MIN + 1 do + $AVG = (($MIN + $MAX) / 2).to_i + res1 = `#{ARGV[0]} #{$AVG} 2>/dev/null` + res2 = `#{ARGV[1]} #{$AVG} 2>/dev/null` + if res1 != res2 then + $MAX = $AVG + else + $MIN = $AVG + end +end + +printf("-- ref --\n") +printf("%s\n", `#{ARGV[0]} -#{$MAX}`) +printf("-- new --\n") +printf("%s\n", `#{ARGV[1]} -#{$MAX}`) + +printf("\nFailed test number is %d, you can reproduce the problematic conditions\n", $MAX) +printf("by running 'scaling-test -%d'\n", $MAX) diff --git a/test/scaling-test.c b/test/scaling-test.c new file mode 100644 index 00000000..ff24b1d4 --- /dev/null +++ b/test/scaling-test.c @@ -0,0 +1,261 @@ +#include <assert.h> +#include <stdlib.h> +#include <stdio.h> +#include "pixman.h" + +/* A primitive pseudorandom number generator, taken from POSIX.1-2001 example */ + +static uint32_t lcg_seed; + +uint32_t lcg_rand(void) +{ + lcg_seed = lcg_seed * 1103515245 + 12345; + return ((uint32_t)(lcg_seed / 65536) % 32768); +} + +void lcg_srand(uint32_t seed) +{ + lcg_seed = seed; +} + +uint32_t lcg_rand_n(int max) +{ + return lcg_rand() % max; +} + +/*----------------------------------------------------------------------------*\ + * CRC-32 version 2.0.0 by Craig Bruce, 2006-04-29. + * + * This program generates the CRC-32 values for the files named in the + * command-line arguments. These are the same CRC-32 values used by GZIP, + * PKZIP, and ZMODEM. The Crc32_ComputeBuf() can also be detached and + * used independently. + * + * THIS PROGRAM IS PUBLIC-DOMAIN SOFTWARE. + * + * Based on the byte-oriented implementation "File Verification Using CRC" + * by Mark R. Nelson in Dr. Dobb's Journal, May 1992, pp. 64-67. + * + * v1.0.0: original release. + * v1.0.1: fixed printf formats. + * v1.0.2: fixed something else. + * v1.0.3: replaced CRC constant table by generator function. + * v1.0.4: reformatted code, made ANSI C. 1994-12-05. + * v2.0.0: rewrote to use memory buffer & static table, 2006-04-29. +\*----------------------------------------------------------------------------*/ + +/*----------------------------------------------------------------------------*\ + * NAME: + * Crc32_ComputeBuf() - computes the CRC-32 value of a memory buffer + * DESCRIPTION: + * Computes or accumulates the CRC-32 value for a memory buffer. + * The 'inCrc32' gives a previously accumulated CRC-32 value to allow + * a CRC to be generated for multiple sequential buffer-fuls of data. + * The 'inCrc32' for the first buffer must be zero. + * ARGUMENTS: + * inCrc32 - accumulated CRC-32 value, must be 0 on first call + * buf - buffer to compute CRC-32 value for + * bufLen - number of bytes in buffer + * RETURNS: + * crc32 - computed CRC-32 value + * ERRORS: + * (no errors are possible) +\*----------------------------------------------------------------------------*/ + +static uint32_t Crc32_ComputeBuf( uint32_t inCrc32, const void *buf, + size_t bufLen ) +{ + static const uint32_t crcTable[256] = { + 0x00000000,0x77073096,0xEE0E612C,0x990951BA,0x076DC419,0x706AF48F,0xE963A535, + 0x9E6495A3,0x0EDB8832,0x79DCB8A4,0xE0D5E91E,0x97D2D988,0x09B64C2B,0x7EB17CBD, + 0xE7B82D07,0x90BF1D91,0x1DB71064,0x6AB020F2,0xF3B97148,0x84BE41DE,0x1ADAD47D, + 0x6DDDE4EB,0xF4D4B551,0x83D385C7,0x136C9856,0x646BA8C0,0xFD62F97A,0x8A65C9EC, + 0x14015C4F,0x63066CD9,0xFA0F3D63,0x8D080DF5,0x3B6E20C8,0x4C69105E,0xD56041E4, + 0xA2677172,0x3C03E4D1,0x4B04D447,0xD20D85FD,0xA50AB56B,0x35B5A8FA,0x42B2986C, + 0xDBBBC9D6,0xACBCF940,0x32D86CE3,0x45DF5C75,0xDCD60DCF,0xABD13D59,0x26D930AC, + 0x51DE003A,0xC8D75180,0xBFD06116,0x21B4F4B5,0x56B3C423,0xCFBA9599,0xB8BDA50F, + 0x2802B89E,0x5F058808,0xC60CD9B2,0xB10BE924,0x2F6F7C87,0x58684C11,0xC1611DAB, + 0xB6662D3D,0x76DC4190,0x01DB7106,0x98D220BC,0xEFD5102A,0x71B18589,0x06B6B51F, + 0x9FBFE4A5,0xE8B8D433,0x7807C9A2,0x0F00F934,0x9609A88E,0xE10E9818,0x7F6A0DBB, + 0x086D3D2D,0x91646C97,0xE6635C01,0x6B6B51F4,0x1C6C6162,0x856530D8,0xF262004E, + 0x6C0695ED,0x1B01A57B,0x8208F4C1,0xF50FC457,0x65B0D9C6,0x12B7E950,0x8BBEB8EA, + 0xFCB9887C,0x62DD1DDF,0x15DA2D49,0x8CD37CF3,0xFBD44C65,0x4DB26158,0x3AB551CE, + 0xA3BC0074,0xD4BB30E2,0x4ADFA541,0x3DD895D7,0xA4D1C46D,0xD3D6F4FB,0x4369E96A, + 0x346ED9FC,0xAD678846,0xDA60B8D0,0x44042D73,0x33031DE5,0xAA0A4C5F,0xDD0D7CC9, + 0x5005713C,0x270241AA,0xBE0B1010,0xC90C2086,0x5768B525,0x206F85B3,0xB966D409, + 0xCE61E49F,0x5EDEF90E,0x29D9C998,0xB0D09822,0xC7D7A8B4,0x59B33D17,0x2EB40D81, + 0xB7BD5C3B,0xC0BA6CAD,0xEDB88320,0x9ABFB3B6,0x03B6E20C,0x74B1D29A,0xEAD54739, + 0x9DD277AF,0x04DB2615,0x73DC1683,0xE3630B12,0x94643B84,0x0D6D6A3E,0x7A6A5AA8, + 0xE40ECF0B,0x9309FF9D,0x0A00AE27,0x7D079EB1,0xF00F9344,0x8708A3D2,0x1E01F268, + 0x6906C2FE,0xF762575D,0x806567CB,0x196C3671,0x6E6B06E7,0xFED41B76,0x89D32BE0, + 0x10DA7A5A,0x67DD4ACC,0xF9B9DF6F,0x8EBEEFF9,0x17B7BE43,0x60B08ED5,0xD6D6A3E8, + 0xA1D1937E,0x38D8C2C4,0x4FDFF252,0xD1BB67F1,0xA6BC5767,0x3FB506DD,0x48B2364B, + 0xD80D2BDA,0xAF0A1B4C,0x36034AF6,0x41047A60,0xDF60EFC3,0xA867DF55,0x316E8EEF, + 0x4669BE79,0xCB61B38C,0xBC66831A,0x256FD2A0,0x5268E236,0xCC0C7795,0xBB0B4703, + 0x220216B9,0x5505262F,0xC5BA3BBE,0xB2BD0B28,0x2BB45A92,0x5CB36A04,0xC2D7FFA7, + 0xB5D0CF31,0x2CD99E8B,0x5BDEAE1D,0x9B64C2B0,0xEC63F226,0x756AA39C,0x026D930A, + 0x9C0906A9,0xEB0E363F,0x72076785,0x05005713,0x95BF4A82,0xE2B87A14,0x7BB12BAE, + 0x0CB61B38,0x92D28E9B,0xE5D5BE0D,0x7CDCEFB7,0x0BDBDF21,0x86D3D2D4,0xF1D4E242, + 0x68DDB3F8,0x1FDA836E,0x81BE16CD,0xF6B9265B,0x6FB077E1,0x18B74777,0x88085AE6, + 0xFF0F6A70,0x66063BCA,0x11010B5C,0x8F659EFF,0xF862AE69,0x616BFFD3,0x166CCF45, + 0xA00AE278,0xD70DD2EE,0x4E048354,0x3903B3C2,0xA7672661,0xD06016F7,0x4969474D, + 0x3E6E77DB,0xAED16A4A,0xD9D65ADC,0x40DF0B66,0x37D83BF0,0xA9BCAE53,0xDEBB9EC5, + 0x47B2CF7F,0x30B5FFE9,0xBDBDF21C,0xCABAC28A,0x53B39330,0x24B4A3A6,0xBAD03605, + 0xCDD70693,0x54DE5729,0x23D967BF,0xB3667A2E,0xC4614AB8,0x5D681B02,0x2A6F2B94, + 0xB40BBE37,0xC30C8EA1,0x5A05DF1B,0x2D02EF8D }; + uint32_t crc32; + unsigned char *byteBuf; + size_t i; + + /** accumulate crc32 for buffer **/ + crc32 = inCrc32 ^ 0xFFFFFFFF; + byteBuf = (unsigned char*) buf; + for (i=0; i < bufLen; i++) { + crc32 = (crc32 >> 8) ^ crcTable[ (crc32 ^ byteBuf[i]) & 0xFF ]; + } + return( crc32 ^ 0xFFFFFFFF ); +} + + +#define MAX_SRC_WIDTH 100 +#define MAX_SRC_HEIGHT 100 +#define MAX_DST_WIDTH 100 +#define MAX_DST_HEIGHT 100 +#define MAX_STRIDE 16 + +/* + * Composite operation with pseudorandom images + */ +uint32_t test_composite(uint32_t initcrc, int testnum, int verbose) +{ + int i; + pixman_image_t *src_img; + pixman_image_t *dst_img; + pixman_transform_t transform; + pixman_region16_t clip; + int src_width, src_height; + int dst_width, dst_height; + int src_stride, dst_stride; + int src_x, src_y; + int dst_x, dst_y; + int src_bpp; + int dst_bpp; + int w, h; + int scale_x = 32768, scale_y = 32768; + int op; + int repeat = 0; + int src_fmt, dst_fmt; + uint32_t *srcbuf; + uint32_t *dstbuf; + uint32_t crc32; + + lcg_srand(testnum); + + src_bpp = /*(lcg_rand_n(2) == 0) ? 2 :*/ 4; + dst_bpp = /*(lcg_rand_n(2) == 0) ? 2 :*/ 4; + op = (lcg_rand_n(2) == 0) ? PIXMAN_OP_SRC : PIXMAN_OP_OVER; + + src_width = lcg_rand_n(MAX_SRC_WIDTH) + 1; + src_height = lcg_rand_n(MAX_SRC_HEIGHT) + 1; + dst_width = lcg_rand_n(MAX_DST_WIDTH) + 1; + dst_height = lcg_rand_n(MAX_DST_HEIGHT) + 1; + src_stride = src_width * src_bpp + lcg_rand_n(MAX_STRIDE) * src_bpp; + dst_stride = dst_width * dst_bpp + lcg_rand_n(MAX_STRIDE) * dst_bpp; + + src_x = -src_width + lcg_rand_n(src_width * 3); + src_y = -src_height + lcg_rand_n(src_height * 3); + dst_x = -dst_width + lcg_rand_n(dst_width * 2); + dst_y = -dst_height + lcg_rand_n(dst_height * 3); + + srcbuf = (uint32_t *)malloc(src_stride * src_height); + dstbuf = (uint32_t *)malloc(dst_stride * dst_height); + for (i = 0; i < src_stride * src_height; i++) + *((uint8_t *)srcbuf + i) = lcg_rand_n(256); + for (i = 0; i < dst_stride * dst_height; i++) + *((uint8_t *)dstbuf + i) = lcg_rand_n(256); + + src_fmt = src_bpp == 4 ? (lcg_rand_n(2) == 0 ? + PIXMAN_a8r8g8b8 : PIXMAN_x8r8g8b8) : PIXMAN_r5g6b5; + + dst_fmt = dst_bpp == 4 ? (lcg_rand_n(2) == 0 ? + PIXMAN_a8r8g8b8 : PIXMAN_x8r8g8b8) : PIXMAN_r5g6b5; + + src_img = pixman_image_create_bits( + src_fmt, src_width, src_height, srcbuf, src_stride); + + dst_img = pixman_image_create_bits( + dst_fmt, dst_width, dst_height, dstbuf, dst_stride); + + if (lcg_rand_n(2) == 0) { + scale_x = 32768 + lcg_rand_n(65536); + scale_y = 32768 + lcg_rand_n(65536); + pixman_transform_init_scale(&transform, scale_x, scale_y); + pixman_image_set_transform(src_img, &transform); + } + + switch (lcg_rand_n(4)) { + case 0: repeat = PIXMAN_REPEAT_NONE; break; + case 1: repeat = PIXMAN_REPEAT_NORMAL; break; + case 2: repeat = PIXMAN_REPEAT_PAD; break; + case 3: repeat = PIXMAN_REPEAT_REFLECT; break; + } + pixman_image_set_repeat(src_img, repeat); + + w = lcg_rand_n(MAX_DST_WIDTH * 2); + h = lcg_rand_n(MAX_DST_HEIGHT * 2); + + if (verbose) { + printf("op=%d, scale_x=%d, scale_y=%d, repeat=%d\n", + op, scale_x, scale_y, repeat); + printf("src_width=%d, src_height=%d, dst_width=%d, dst_height=%d\n", + src_width, src_height, dst_width, dst_height); + printf("src_x=%d, src_y=%d, dst_x=%d, dst_y=%d\n", + src_x, src_y, dst_x, dst_y); + printf("w=%d, h=%d\n", w, h); + } + + pixman_image_composite (op, src_img, NULL, dst_img, + src_x, src_y, 0, 0, dst_x, dst_y, w, h); + + if (verbose) { + int j; + for (i = 0; i < dst_height; i++) { + for (j = 0; j < dst_stride; j++) { + printf("%02X ", *((uint8_t *)dstbuf + i * dst_stride + j)); + } + printf("\n"); + } + } + + pixman_image_unref (src_img); + pixman_image_unref (dst_img); + + crc32 = Crc32_ComputeBuf(initcrc, dstbuf, dst_stride * dst_height); + free(srcbuf); + free(dstbuf); + return crc32; +} + +int main(int argc, char *argv[]) +{ + int i, n = 0; + uint32_t crc = 0; + + if (argc >= 2) + n = atoi(argv[1]); + + if (n == 0) n = 10000; + + if (n < 0) { + crc = test_composite(0, -n, 1); + printf("crc32=%08X\n", crc); + } + else { + for (i = 1; i <= n; i++) + { + crc = test_composite(crc, i, 0); + } + printf("crc32=%08X\n", crc); + } + return 0; +} |